Humidity Problem, could the blower be too strong?

I just had someone work on my furnace a couple of months ago to replace a f
ilter box. They had lots of trouble and I think they tried to accommodate
for something by changing the blower speed. The result was that our home w
ent from 40% range of humidity levels to 60% + levels. it's horrible in th
ere. Two separate A/C companies cannot find the problem. Everything look
s good.
From what I read, it's possible that the unit is not running long enough to
rid of humidity. And by lowering the blower speed it might be able to do t
hat. Any ideas? I wish I had taken photos prior to the work that was don
e. But after I look at the current wiring and compare that to the owners m
anual, it almost looks incorrectly wired. I appreciate any advice.

months ago to replace a filter box. They had lots
of trouble and I think they tried to accommodate
for something by changing the blower speed. The
result was that our home went from 40% range of
humidity levels to 60% + levels. it's horrible
in there. Two separate A/C companies cannot find
the problem. Everything looks good.

not running long enough to rid of humidity. And by
lowering the blower speed it might be able to do
that. Any ideas? I wish I had taken photos prior
to the work that was done. But after I look at the
current wiring and compare that to the owners manual,
it almost looks incorrectly wired. I appreciate
any advice.

"Stormin Mormon" wrote in message
On 5/8/2016 2:05 PM, David Pool wrote:

months ago to replace a filter box. They had lots
of trouble and I think they tried to accommodate
for something by changing the blower speed. The
result was that our home went from 40% range of
humidity levels to 60% + levels. it's horrible
in there. Two separate A/C companies cannot find
the problem. Everything looks good.

not running long enough to rid of humidity. And by
lowering the blower speed it might be able to do
that. Any ideas? I wish I had taken photos prior
to the work that was done. But after I look at the
current wiring and compare that to the owners manual,
it almost looks incorrectly wired. I appreciate
any advice.

filter box. They had lots of trouble and I think they tried to accommodat
e for something by changing the blower speed. The result was that our home
went from 40% range of humidity levels to 60% + levels. it's horrible in
there. Two separate A/C companies cannot find the problem. Everything lo
oks good.

to rid of humidity. And by lowering the blower speed it might be able to do
that. Any ideas? I wish I had taken photos prior to the work that was d
one. But after I look at the current wiring and compare that to the owners
manual, it almost looks incorrectly wired. I appreciate any advice.
Typically the fan speed for the ac is the high setting. If you have a sing
le speed, basic ac then during the spring and fall there is some risk of th
e unit not running long enough to lower the humidity. That's just the natu
re of single speed systems. If you want better control you should probably
look at a variable or two speed unit. Single speed units have to be sized
to accommodate the summer loads and that makes them too big during spring
and fall. That problem will be more noticeable in the case of springs that
are unusually wet and cool for prolonged periods.

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